The book is widely considered the most authentic spiritual biography of Lahiri Mahasaya
To understand the value of the PDF, you must first understand the title. Purana Purusha Lahiri Mahasaya Pdf English
Most original biographies of Lahiri Mahasaya, such as Yogananda's "Autobiography of a Yogi" (which introduces him to the West), , or the "Lahiri Mahasaya's Purana Purusha" published by small Kriya Yoga trusts, are often out of print or available only in Bengali and Hindi. The book is widely considered the most authentic